Yamanashi Climate by Month
Yamanashi experiences great temperature shifts.
The city's weather can transition from warm days
to cold weather.
It also has a notably wet climate with much precipitation.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
The climate in Yamanashi is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures range from a comfortable 27°C in August, the warmest time of the year, to a chilly 4°C during cooler months like January. At night, temperatures typically average around -6°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Yamanashi has a notably wet climate with abundant precipitation, recording 1856 mm of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, September receives heavy rainfall, averaging 238 mm of precipitation, recorded across 19 rainy days. In contrast, the drier season, December brings less snow/rainfall, with 67 mm over 10 snowy/rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
While the amount of sunshine in Yamanashi varies throughout the year, all seasons offer their own charm. Enjoy up to 6.7 hours of daily sun in August, and experience slightly darker atmosphere in June, with about 5.0 hours of daily sunlight.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is low throughout the year in Yamanashi.
Relative humidity over the year
The best time of year to visit Yamanashi in Japan
During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Rainy season in Yamanashi occurs in the months of May, June, July, August, September and October.
August has an average maximum temperature of 27°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 4°C.
September tops the wettest month list with 238 mm of rainfall.
December is the driest month with 67 mm of precipitation.
August is the sunniest month with an average of 201 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
